synfig-core/trunk/src/modules/lyr_std/import.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file import.cpp
   3 **      \brief Image Import Layer Implementation
   4 **
   5 **      \legal
   6 **      Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
   7 **
   8 **      This package is free software; you can redistribute it and/or
   9 **      modify it under the terms of the GNU General Public License as
  10 **      published by the Free Software Foundation; either version 2 of
  11 **      the License, or (at your option) any later version.
  12 **
  13 **      This package is distributed in the hope that it will be useful,
  14 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16 **      General Public License for more details.
  17 **      \endlegal
  18 **
  19 ** === N O T E S ===========================================================
  20 **
  21 ** ========================================================================= */
  22
  23 /* === H E A D E R S ======================================================= */
  24
  25 #ifdef USING_PCH
  26 #       include "pch.h"
  27 #else
  28 #ifdef HAVE_CONFIG_H
  29 #       include <config.h>
  30 #endif
  31
  32 #include "import.h"
  33 #include <synfig/string.h>
  34 #include <synfig/time.h>
  35 #include <synfig/context.h>
  36 #include <synfig/paramdesc.h>
  37 #include <synfig/renddesc.h>
  38 #include <synfig/surface.h>
  39 #include <synfig/value.h>
  40 #include <synfig/valuenode.h>
  41 #include <synfig/canvas.h>
  42
  43 #endif
  44
  45 using namespace synfig;
  46 using namespace std;
  47 using namespace etl;
  48
  49 /* === M A C R O S ========================================================= */
  50
  51 /* === G L O B A L S ======================================================= */
  52
  53 SYNFIG_LAYER_INIT(Import);
  54 SYNFIG_LAYER_SET_NAME(Import,"import");
  55 SYNFIG_LAYER_SET_LOCAL_NAME(Import,_("Import"));
  56 SYNFIG_LAYER_SET_CATEGORY(Import,_("Other"));
  57 SYNFIG_LAYER_SET_VERSION(Import,"0.1");
  58 SYNFIG_LAYER_SET_CVS_ID(Import,"$Id: import.cpp,v 1.2 2005/03/19 04:26:42 darco Exp $");
  59
  60 /* === P R O C E D U R E S ================================================= */
  61
  62 /* === M E T H O D S ======================================================= */
  63
  64 Import::Import()
  65 {
  66         time_offset=0;
  67 }
  68
  69 Import::~Import()
  70 {
  71 }
  72
  73 void
  74 Import::on_canvas_set()
  75 {
  76         if(get_canvas())set_param("filename",filename);
  77 }
  78
  79 bool
  80 Import::set_param(const String & param, const ValueBase &value)
  81 {
  82         try{
  83         IMPORT(time_offset);
  84         if(param=="filename" && value.same_as(filename))
  85         {
  86                 if(!get_canvas())
  87                 {
  88                         filename=value.get(filename);
  89                         importer=0;
  90                         surface.clear();
  91                         return true;
  92                 }
  93
  94                 String newfilename=value.get(string());
  95                 String filename_with_path;
  96
  97                 // Get rid of any %20 crap
  98                 {
  99                         unsigned int n;
 100                         while((n=newfilename.find("%20"))!=String::npos)
 101                                 newfilename.replace(n,3," ");
 102                 }
 103
 104                 //if(get_canvas()->get_file_path()==dirname(newfilename))
 105                 //{
 106                 //      synfig::info("Image seems to be in local directory. Adjusting path...");
 107                 //      newfilename=basename(newfilename);
 108                 //}
 109
 110 #ifndef WIN32
 111                 if(is_absolute_path(newfilename))
 112                 {
 113                         string curpath(cleanup_path(absolute_path(get_canvas()->get_file_path())));
 114                         while(basename(curpath)==".")curpath=dirname(curpath);
 115
 116                         newfilename=relative_path(curpath,newfilename);
 117                         synfig::info("basename(curpath)=%s, Path adjusted to %s",basename(curpath).c_str(),newfilename.c_str());
 118                 }
 119 #endif
 120
 121                 if(filename.empty())
 122                         filename=newfilename;
 123
 124                 if(newfilename.empty())
 125                 {
 126                         filename=newfilename;
 127                         importer=0;
 128                         surface.clear();
 129                         return true;
 130                 }
 131
 132                 // If we are already loaded, don't reload
 133                 if(filename==newfilename && importer)
 134                 {
 135                         synfig::warning(strprintf(_("Filename seems to already be set to \"%s\" (%s)"),filename.c_str(),newfilename.c_str()));
 136                         return true;
 137                 }
 138
 139                 assert(get_canvas());
 140
 141                 if(is_absolute_path(newfilename))
 142                         filename_with_path=newfilename;
 143                 else
 144                         filename_with_path=get_canvas()->get_file_path()+ETL_DIRECTORY_SEPERATOR+newfilename;
 145
 146                 handle<Importer> newimporter;
 147
 148                 newimporter=Importer::open(absolute_path(filename_with_path));
 149
 150                 if(!newimporter)
 151                 {
 152                         newimporter=Importer::open(get_canvas()->get_file_path()+ETL_DIRECTORY_SEPERATOR+basename(newfilename));
 153                         if(!newimporter)
 154                         {
 155                                 synfig::error(strprintf("Unable to create an importer object with file \"%s\"",filename_with_path.c_str()));
 156                                 surface.clear();
 157                                 return false;
 158                         }
 159                 }
 160
 161                 surface.clear();
 162                 if(!newimporter->get_frame(surface,Time(0)))
 163                 {
 164                         synfig::warning(strprintf("Unable to get frame from \"%s\"",filename_with_path.c_str()));
 165                 }
 166
 167                 importer=newimporter;
 168                 filename=newfilename;
 169                 abs_filename=absolute_path(filename_with_path);
 170
 171                 return true;
 172         }
 173         } catch(...) { set_amount(0); return false; }
 174
 175         return Layer_Bitmap::set_param(param,value);
 176 }
 177
 178 ValueBase
 179 Import::get_param(const String & param)const
 180 {
 181         EXPORT(time_offset);
 182
 183         if(get_canvas())
 184         {
 185                 if(param=="filename")
 186                 {
 187                         string curpath(cleanup_path(absolute_path(get_canvas()->get_file_path())));
 188                         return relative_path(curpath,abs_filename);
 189                 }
 190         }
 191         else
 192                 EXPORT(filename);
 193
 194         EXPORT_NAME();
 195         EXPORT_VERSION();
 196
 197         return Layer_Bitmap::get_param(param);
 198 }
 199
 200 Layer::Vocab
 201 Import::get_param_vocab()const
 202 {
 203         Layer::Vocab ret(Layer_Bitmap::get_param_vocab());
 204
 205         ret.push_back(ParamDesc("filename")
 206                 .set_local_name(_("Filename"))
 207                 .set_description(_("File to import"))
 208                 .set_hint("filename")
 209         );
 210         ret.push_back(ParamDesc("time_offset")
 211                 .set_local_name(_("Time Offset"))
 212         );
 213
 214         return ret;
 215 }
 216
 217 void
 218 Import::set_time(Context context, Time time)const
 219 {
 220         if(get_amount() && importer && importer->is_animated())importer->get_frame(surface,time+time_offset);
 221         //else surface.clear();
 222         context.set_time(time);
 223 }
 224
 225 void
 226 Import::set_time(Context context, Time time, const Point &pos)const
 227 {
 228         if(get_amount() && importer && importer->is_animated())importer->get_frame(surface,time+time_offset);
 229         //else surface.clear();
 230         context.set_time(time,pos);
 231 }